de celles



(No Model.)

J. H. E. DE CELLES.

EYEGLASSES.

No. 560,156. Patented May 12; 1896.

Witnesses: Invehtor. 1 1' ttorney.

AN DREW E.GFlA iAM.PHUTO-U\'HD.WASHIN Gmu. D c

UNTTED STATES PATENT OFFICE,

JOSEPH II. E. DE CELLES, OF SOUTIIBRIDGE, MASSACHUSETTS, ASSIGNOR TO THE AMERICAN OPTICAL COMPANY, OF SAME PLACE.

EYEG LASSES.

SPECIFICATION forming part of Letters Patent No. 560,156, dated May 12, 1896.

Application filed October 3, 1895. Serial No. 564,486. (No model.)

To all whom it may concern:

Be it known thatI, JosEPH ILE. DE CELLEs, a citizen of the United States, residing at Southbridge, in the county of lVorcesterand State of Massachusetts, have invented certain new and useful Improvements in Eyeglasses, of which the following is a specification.

M y invention relates to eyeglasses, and particularly to that class of eyeglasses adapted to be moved apart in a straight line to separate the lenses.

The obj ectof my invention is to provide an improved two-bar spring or extensioirbridge between the lenses, consisting of two bars arranged parallel to each other in a horizontal plane and at some distance apart, so as to leave an open space between them, and made bent inwardly, as shown at 6', Figs. and t, and then downwardly and inwardly, as shown at 6"in Figs. 1 and 2, so that the lower attaching end, which is flattened, will extend into 55 the grooved end of the post at. 1

In order to bring the lower ends of thebars and 6 into the same vertical plane, so as to fit properly into the posts, it is necessary to bend them intermediate their straight portions and their attached ends, as above described and shown in the drawings, for the reason that the straight portions of said bars 5 and 6 extend in a horizontal plane at some distance apart. I 6 3 The free end of the bar 5 is provided with a plate or yoke 7, secured thereon at one end and the other end provided with a perforation, through which the bar 6 loosely slides.

integral with the bridge side arms instead of The free end of the bar 6 is provided with a 70 separate therefrom, as is customary. plate or yoke S, secured thereon at one end My invention consists in certain novel feaand the other end provided with a perforatures of construction of a two-bar spring or tion through which the other bar 5 loosely extension-bridge for eyeglasses, as will be slides. Intermediate the plates 7 and S are hereinafter fully described, and the nature arranged two other plates 9 and 10, one of 75 thereof indicated by the claims. which, as 9, is fast on the bar 5 and is adapt- Referring to the drawings, Figure 1 is a ed to slide loosely on the other bar 6, and perspective view of eyeglasses embodying my the other, as 10, is fast on the bar 6 and adaptimprovements. Fig. 2 is afront View. Fig. ed to slide loosely on the bar 5. Intermediis a plan view looking in the direction of ate two of the plates, as '7 and 10, is mounted 0 0 arrow a, Fig. 2; and Fig. 4 corresponds to on one of the bars, in this instance the front Fig. 3, but shows the lenses drawn apart and bar 6, a spiral spring 11. A second spring 12 the bridge extended. may be used mounted between the other two In the accompanying drawings, 1 are the plates 8 and 9, as shown. lenses, in this instance mounted in the wire The advantages of my improved construc- 85 3 5 rims 2. tion of a two-bar spring or extension-bridge 3 are offset nose-guards of ordinary conbetween the lenses willbereadily appreciated struetion, secured in the posts I in the ordiby those skilled in the art. It is of very sininary way. ple construction, and as each bar forming the The extension-bridge or connection bebridge andthe side armis made integral,or in g0 0 tween the lenses consists of two bars 5 and one piece, there are no joints to get loose and 6, which for a portion of their length extend no possible movement of the sliding bars inin ahorizontal plane on about a level with dependently of the bridge side arms. By the tops of the wire rims 2 and parallel to means of the two parallel sliding bars arcach other, with a space between said bars. ranged at some distance apart and connected 5 The bar 5 from the straight portion thereby the four yokes or plates the lenses are of is bent slightly outwardly, as shown at 5, held rigidly and prevented from getting out Figs. 3 and I, and then downwardly and inof line in a vertical plane, which is imporwardly, shown at 5 in Fig. 2, so that the tant. lower attaching end, which is flattened, will Having thus described my invention, what mo fit into the grooved end of the post I. The bar 6 from the straight portion thereof is I claim as new, and desire to secure by Lettei 5 Patent, is-

1. In a two-bar spring or bridge for eye- I glasses, the two bars arranged in a horizontal plane at some distance apart, and the inner bar bent outwardly, downwardly, and inwardly, with the lower attaching end flattened to form an integral bridge side arm, and the outer barbent inwardly, downwardly, and inwardly, with the lower attaching end flattened to form an integral bridge side arm, and two yokes or plates secured on each bar, and adapted to slide loosely on the otherbar, and a spring mounted on one bar intermediate two of the plates, substantially as set forth.

2. In eyeglasses, the extension-bridge between the lenses, comprising two parallel bars extending in a horizontal plane, and the inner bar bent outwardly, downwardly, and inwardly to form an integralbridge side arm, and the outer bar bent inwardly, downwardly, and inwardly to form an integral bridge side arm, and each bar carrying two yokes or plates fast thereon, which slide loosely on the other bar, and a spring or springs mounted on one bar, substantially as set forth.

JOSEPH H. E. DE CELLES.

lVitnesses:

AMEDEE BONIN, ALFRED GALYREAU. 

